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首次在大亚湾设置了一个大气干、湿沉降监测站点进行采样,主要分析估算各营养物质通过大气干、湿沉降的通量,初步探讨N、P的沉降对大亚湾的影响,并与营养盐随河流输入的方式进行比较。结果表明,大亚湾的干、湿沉降都是以N为主,N沉降主要集中在春夏两季(3～8月),P的沉降较为平稳,只有6月和9月稍高;湿沉降是大气沉降的主要方式;大亚湾属于低营养海域,虽然营养盐随大气沉降输入的总通量小于河流输入量,但是其中硝酸盐和总P大气沉降输入的作用尤为重要,分别为河流输入量的568.27%和84.09%。其中P为海域营养盐的主要限制因子,富含P的大气沉降到表层海水中,对浮游植物的生长有着重要的影响。
For the first time, an atmospheric dry and wet settlement monitoring station was set up in Daya Bay to sample and analyze the flux of dry matter and wet deposition of various nutrients through the atmosphere. The effects of N and P deposition on Daya Bay were discussed. Enter the way to compare. The results show that the dry-wet deposition of Daya Bay is dominated by N, and the N deposition is mainly concentrated in the spring and summer seasons (March-August). The settlement of P is relatively stable, only slightly higher in June and September; wet deposition is Daya Bay is a low-nutrient area. Although the total flux of nutrient salt input with atmospheric deposition is less than that of river input, the input of nitrate and total P into the sediment is particularly important, which is respectively 568.27 % And 84.09%. Among them, P is the main limiting factor of nutrients in the sea. P-enriched atmosphere settles into the surface seawater and has an important influence on phytoplankton growth.